Improve server startup logging and update script fetching

Adds success and error logging to the Next.js app preparation process in server.js, including guidance for missing production builds. In versionRouter, always fetches the latest update.sh from GitHub before running updates, logging the outcome and falling back to the local script if fetching fails.

server.js

@@ -1610,6 +1610,7 @@ class ScriptExecutionHandler {
 // TerminalHandler removed - not used by current application
 
 app.prepare().then(() => {
+  console.log('> Next.js app prepared successfully');
   const httpServer = createServer(async (req, res) => {
     try {
       // Be sure to pass `true` as the second argument to `url.parse`.
@@ -1715,4 +1716,9 @@ app.prepare().then(() => {
         autoSyncModule.setupGracefulShutdown();
       }
     });
+}).catch((err) => {
+  console.error('> Failed to start server:', err.message);
+  console.error('> If you see "Could not find a production build", run: npm run build');
+  console.error('> Full error:', err);
+  process.exit(1);
 });

src/server/api/routers/version.ts

@@ -238,6 +238,27 @@ export const versionRouter = createTRPCRouter({
         // Clear/create the log file
         await writeFile(logPath, '', 'utf-8');
         
+        // Always fetch the latest update.sh from GitHub before running
+        // This ensures we always use the newest update script, avoiding
+        // the "chicken-and-egg" problem where old scripts can't update properly
+        const updateScriptUrl = 'https://raw.githubusercontent.com/community-scripts/ProxmoxVE-Local/main/update.sh';
+        try {
+          const response = await fetch(updateScriptUrl);
+          if (response.ok) {
+            const latestScript = await response.text();
+            await writeFile(updateScriptPath, latestScript, { mode: 0o755 });
+            // Log that we fetched the latest script
+            await writeFile(logPath, '[INFO] Fetched latest update.sh from GitHub\n', { flag: 'a' });
+          } else {
+            // If fetch fails, log warning but continue with local script
+            await writeFile(logPath, `[WARNING] Could not fetch latest update.sh (HTTP ${response.status}), using local version\n`, { flag: 'a' });
+          }
+        } catch (fetchError) {
+          // If fetch fails, log warning but continue with local script
+          const errorMsg = fetchError instanceof Error ? fetchError.message : 'Unknown error';
+          await writeFile(logPath, `[WARNING] Could not fetch latest update.sh: ${errorMsg}, using local version\n`, { flag: 'a' });
+        }
+        
         // Spawn the update script as a detached process using nohup
         // This allows it to run independently and kill the parent Node.js process
         // Redirect output to log file